8th grade genetics
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Genetics | The scientific study of heredity
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| Heredity | The pass of traits from parents to young
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| Trait | A characteristic or feature of an organism
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| DNA | A neucleic acid that stores all the information needed for a cell to function
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| Chromosome | A threadlike structure that is made of of DNA and proteins; a series of genes
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| Karyotype | A visual picture of a set of chromosomes
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| Gene | A section of a chromosome carrying the information for a specific trait
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| Dominant Trait | A trait that prevents the showing of another trait
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| Recessive Trait | A trait that is hidden by the presence of a dominant trait
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| Genotype | The genetic makeup of an organism; the genes
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| Phenotype | The inherited appearance of an organism; the looks
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| Punnett square | A chart that shows all the possible combinations of traits among the offspring of a cross
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| Purebred | An organism that has two of the same forms of a trait
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| Hybrid | An organism that is produced by a cross of parents that have different forms of a trait
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| Incomplete dominance | A condition in which neither trait of a pair is dominant or recessive (Also called "blending")
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| Sex chromosomes | The two chromosomes that determine sex
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| X-chromosome | A sex chromosome found in the cells of both males and females
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| Y-chromosome | A sex chromosome found only in the cells of males
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| Sex-linked trait | A trait that results from a gene that is found on one of the sex chromosomes
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| Meiosis | Cell division in which sperm or eggs are made
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| Mitosis | Cell division in which daughter cells are formed that are just like the parent cell
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| Selective breeding | The crossing of plants or animals having the most useful traits to produce offspring that have the combined useful traits of the parents
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| Genetic engineering | The transfer of genes from one organism to another
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
HoraitisScience
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